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convert float column to numeric

Last Modified: 2012-08-13
Hi ,

 I have a float coloun with a id and values are like "2.14966375804504E+17"  and when I try to convert them to Numeric using

ALTER TABLE  [ttoptest].[dbo].[HDS_20080204]
        ALTER COLUMN VISID numeric (25) NOT NULL

I get an error saying

Msg 8115, Level 16, State 6, Line 1
Arithmetic overflow error converting float to data type numeric.
The statement has been terminated.

can some one please help!!!
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